Miner&#39;s lamp.



No. 884.191. l PATENTE) APR. 7, 1908. c. MURRAY.

MINERS LAMP.

, APPLICATION FILED vJULY 26.1907.

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ath-yung UNITED STATES PATENT OFFICE.

CHARLES MURRAY, OF TREVORTON, PENNSYLVANIA, ASSIGNOR OF ONE-HALF TOCHARLES OYCONNOR, OF TREVORTON, PENNSYLVANIA.

MINERS LAMP.

To all whom it may concern:

v Be it known that I, CHARLES MURRAY, a citizen of the United States ofAmerica, residing at Trevorton, v in the county of Northumberland andState of Pennsylvania, have invented new and useful Im rovernents inMiners Lamps, of which the 'ollowing is a specification.

My invention relates to miners lamps, and its primary object is toprovide a lamp of this character with means' by which the amount of airfed to the oil reservoir may be regulated to compensate for poorlyfitting wicks and the tendency of the oil to feed too rapidly on theminers entering an air passage.

A further object of my invention is to provide a miners lamp wherein theclosure of the reservoir is provided with the air regulating means, andto provide a closure which may be sold separately for application tolamps already in use.

A still further object of my invention is to provide a device of theabove stated character which is simple of construction, and which may bemanufactured and sold at a comparatively low cost.

With the above andlother objects in view, the invention consists in theconstruction, combination and arrangement of parts hereinafter fullydescribed, claimed and illustrated in the accompanying drawing, wherein:

Figure 1 is a perspective view of a miners lamp constructed inaccordance with my invention, and Fig. 2 is a vertical central sectionalview thereof.

Referring to the drawing by reference numerals, 2 designates the oilreservoir provided with a filling opening 3, 4 the wick tube and 5 thesupporting hook of a miners lamp of the usual construction.

6 designates top plate of the closure for the opening 3 of the oilreservoir, said closure being hingedly secured to the reservoir by meansof the element 7. The top late of the closure is provided with a lateraly flaring annular fiange 8, the lower edge of which is adapted tofrictionally engage the Wall of the opening 3 to secure the closure in aplied position a ainst accidental opening, and with a vertical y risingtubular member 9, which provides a passage 9a which communicatesdirectly with the reservoir 2. The lower end of the member 9 isconnected with the flange 8 by means of a Wall 10, and the upper endthereof is provided with an enlarged screw Specification of LettersPatent.

Application led July 26, 1907.

Patented April 7, 1908.

Serial No. 385,692.

threaded head 11. The wall 10 inclines downwardly and laterally and isprovided to reinforce the flange 8 and the member 9. A valve ca 12 hasthreaded engagement with the hea 11, whereby the same may be adjusted toregulate the amount of air entering the reservoir 2. The lower end ofthe valve cap 12 is bent inwardly to provide an annular shoulder 13adapted to engage the under side of the head 1 1 to limit the openingmovement of the valve cap. The upper closed end of the valve cap 12 isprovided with openings 14, which are arranged concentric to the passage9, whereby the valve cap may be adjusted to partially or fully close theair passage 9a.

It is the practice among miners to manufacture wicks for their lamps outof cotton, and a great many times the wicks are so defective that theoil either feeds too freely or not freely enough. When a miner enters anair passage the oil feeds too freely, and drops from the wick tube. Itshould be apparent that these serious objections may be overcome byadjusting the valve cap 12 to regulate the amount of air fed to the oilreservoir.

Changes in the form, proportions and minor details of construction maybe made within the scope of the claims without departing from the spiritor sacrificing any of the advantages of the invention.

Having fully described and illustrated my invention, what I claim as newis:

The combination with a miners lam including a reservoir provided with aling opening, of a closure for the filling opening, said closureconsisting of a top late provided with a 'laterally flaring annu arRange, the lower edge of which is adapted to frictionally engage theinner wall of the filling opening, a tubular member carried by an(projecting above and below the top plate, the passage of the tubularmember communicating directly with the reservoir, a downwardly andlaterally inclined plate secured to the lower end of the tubular memberand to the Range, said plate reinforcing the member and the flange, anda valve cap mounted on the tubular member.

In testimony whereof I aix my signature in presence of two witnesses.

CHARLES MURRAY.

Witnesses:

A. G. SHORNER, D. N. BERKHEISER.

